Erstellen Sie ein kostenloses Konto, um die Nutzung zu verfolgen, und führen Sie dann ein Upgrade durch, um mehr monatliche Komprimierungen und größere Batch-Limits zu erhalten.
WebP ist bereits eines der effizientesten Bildformate. Unser Tool treibt es mit erweiterter Neukodierung noch weiter voran, um exakte Dateigrößenziele zu erreichen.
Laden Sie WebP-Bilder hoch
Select your WebP files — static images or animated WebP sequences. The tool handles both lossy and lossless WebP inputs. Batch upload up to 50 files.
Choose Target Size
Pick a target file size. WebP supports both lossy and lossless modes — our engine picks the optimal mode and quality factor to hit your target with the best visual result.
Download Compressed WebP
Download your optimized WebP files ready for the web. The output format stays WebP — no conversion. Individual download or ZIP batch available.
Why Choose Our WebP Compressor
VP8 Lossy Encoding
Lossy WebP uses the VP8 video codec's intra-frame encoding with predictive coding and adaptive quantization, producing files 25-35% smaller than equivalent JPEGs.
Lossless Mode
WebP lossless compression uses spatial prediction, color transforms, and entropy coding. It produces files 26% smaller than PNG on average with zero quality loss.
Alpha-Kanal-Unterstützung
Unlike JPG, WebP supports full transparency in both lossy and lossless modes. Lossy WebP with alpha is typically 3x smaller than a PNG with the same transparency.
Broad Browser Support
WebP wird von allen modernen Browsern unterstützt – Chrome, Firefox, Safari 14+ und Edge. Die weltweite Browserabdeckung liegt bei über 97 % und ist somit sicher für den produktiven Webeinsatz.
Smaller Than JPEG
WebP lossy files are 25-35% smaller than JPEG at the same visual quality, and WebP also supports transparency which JPEG cannot.
Animation Support
WebP supports animated sequences as a modern replacement for GIF, delivering significantly smaller file sizes with better color depth and transparency.
Die Kompressionsphysik
How WebP compression works at this target
WebP is a VP8-derived format that ships in two modes: lossy (≈25-35% smaller than JPG at the same visual quality) and lossless (≈26% smaller than PNG). Our compressor uses lossy mode by default and tunes the quality parameter downward to hit the target. The quality-vs-size curve is smoother than JPG — going from quality 90 to 60 in WebP typically produces less visible degradation than the equivalent JPG drop. All modern browsers (Chrome, Firefox, Safari 14+, Edge) support WebP natively.
Echte Portale, die Größenzielen zugeordnet sind
Which target size to pick for WEBP
Different portals cap WEBP uploads at different sizes. Pick the target that matches where you’re uploading rather than shrinking blindly — over-compressing wastes visible quality, under-compressing gets rejected.
Quick answers about compression targets, upload limits, format behavior, and the best cases for compressing WEBP files.
How do I compress WEBP files online?
Choose a target size, upload your WEBP file, and click Compress. iFormat shrinks it to your chosen size while keeping quality as high as possible — free, no watermark, and no account needed.
Auf welche Größen kann ich WEBP komprimieren?
Sie können auf 50 KB, 100 KB, 200 KB, 500 KB, 1 MB oder 2 MB abzielen, jeweils mit einem eigenen dedizierten Tool. Wählen Sie die Größe aus, die dem Upload-Limit oder der E-Mail-Obergrenze entspricht, die Sie einhalten müssen.
How does WEBP compression work?
WebP compression adjusts the quality parameter of Google's VP8-derived codec. WebP is already 25–35% more efficient than JPG at equivalent quality, so further compression involves lowering quality or reducing dimensions. The compressor finds the optimal quality setting for your target size.
Will compressing reduce WEBP quality?
WebP handles compression artifacts better than JPG — it avoids the blocking artifacts that JPG shows at low quality. At quality 60, WebP still looks acceptable for web use. Below quality 40, smearing and loss of fine detail become visible.
Is the WEBP compressor free?
Yes. Compressing WEBP files is free with no watermark and no sign-up. Paid plans only raise file-size and batch limits.
Are my WEBP files kept private?
Yes. Uploads use an encrypted HTTPS connection, compression runs on an isolated worker, and both your original and the compressed file are deleted automatically within a short window — nothing is stored, shared, or used for training.
